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Finding the Fourth Proportional to 793,879.74, 1,095,312.72 and 449,661

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Solution

The fourth proportional to 793,879.74, 1,095,312.72 and 449,661 is: 620,395.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    793,879.74 : 1,095,312.72 = 449,661 : x
  2. Step 2: Convert to fraction form
    793,879.74/1,095,312.72 = 449,661/x
  3. Step 3: Cross multiply
    793,879.74x = 1,095,312.72 × 449,661
  4. Step 4: Simplify right side
    793,879.74x = 492,519,412,987.92
  5. Step 5: Solve for x
    x = 492,519,412,987.92/793,879.74
  6. Step 6: Final answer
    x = 620,395.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.